I'm a pirate, but my up/down ratios are 1/1 and i treat all the illegal copies as demos. I loved my copy of World of Goo and so I bought it (didn't realize there was a demo, so I guess I should look harder). Piracy also makes games that aren't available in stores anymore yet companies still hold the rights accessible. Just something to think about.

If you're at all familiar with computer history, you might have heard of Bill Gates' famous 1976 letter to the Homebrew Computer Club. The letter was written to address rampant piracy of Bill's earliest product, Altair BASIC, which was being passed around quite freely by hobbyists in paper tape...